Palming the Mini with my left hand is what I was doing with the demo unit best buy had but not set up on the kiosk then. Any interaction with the screen was with my right hand, the left thumb always completely under the Mini.

Cool, but I would never hold it like that due to fatigue and lack of one handed operation. I find it extremely fatiguing to hold anything in my palm for very long, but I'm sure others don't necessarily have that issue.